The Male Reproductive System 男性生殖系
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1 The Male Reproductive System 男性生殖系 陈晓 浙江大学医学院干细胞与组织工程中心临床医学 运动医学博士 The Reproductive System The male reproductive organs The female reproductive organs 2 1
2 Structures of the reproductive systems MALE FEMALE Internal genital organs 内生殖器 Gonads Testis 生殖腺睾丸 Ovary 卵巢 Epididymis 附睾 Ductus deferens 输精管 Ejaculatory duct 射精管 Transport ducts 输送管道 External genital organs 外生殖器 Accessory glands 附属腺 Male urethra 男性尿道 Seminal vesicle 精囊腺 Prostate 前列腺 Bulbourethral gland 尿道球腺 Scrotum 阴囊 Penis 阴茎 Uterine tube 输卵管 Uterus 子宫 Vagina 阴道 Greater vestibular gland 前庭大腺 Vulva 女阴 3 The male reproductive organs Internal genital organs: gonad--- testis ( 睾丸 ), ducts --- epididymis ( 附睾 ), 附睾 ductus deferens ( 输精管 ) ejaculatory ducts ( 射精管 ) urethra ( 尿道 ) accessory glands--- seminal vesicle ( 精囊腺 ) prostate ( 前列腺 ) bulbourethral glands ( 尿道球腺 External genital organs: scrotum ( 阴囊 ), penis ( 阴茎 ) 阴茎 尿道球腺 ) 4 2
3 5 6 3
4 7 Ⅰ. The testis 睾丸 : The features of testes--- Paired oval-shaped organs They are in the scrotum (crypart) 2 extremities, 2 surfaces, 2 borders: Posterior border (mesorchial border) connected with the epididymis Anterior border
5 The structure of testes:
6 11 Ⅱ. The Epididymis 附睾 : Position: in the scrotum, attached to the posterior borderof the testis External feature: 3 parts-- head, body, tail Structure: 12 6
7 Ⅲ. The ductus deferens: 输精管 the testicular part, the funicular (spermatic) part, inguinal part, pelvic part: longest part ampulla ductus deferentis 输精管壶腹 13 The ductus deferens Pelvic part Inguinal part Funicular part Testicular part 14 7
8 15 Spermatic cord 精索 : --- soft round rope --- upper extremity of the testis deep ring of inguinal canal --- main structure : ductus deferense, testicular artery pampiniform plexus of vein nervous plexus lymphatic vessels remnants of vaginal process --- three tunics : external spermatic fascia cremaster muscle internal spermatic fascia 16 8
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10 Descending testis 19 Ⅳ.The Ejaculatory duct 射精管 : Formation: It s formed by the union of the end portion of the ductus deferens and the seminal vesicle duct. Position: It penetrated the base of the prostate, and opened into the prostatic portion of urethra
11 21 Ⅴ. The male urethra 男性尿道 : Three parts prostatic portion membranous portion cavernous portion Three constrictions internal orifice membranous portion external orifice The three dilations prostatic portion bulbar portion of urethra navicular fossa The two curvatures subpubic curvature prepubic curvature 22 11
12 23 Ⅵ. The prostate 前列腺 Location in the lesser pelvic. Between the urinary bladder and the urogenital diaphragm; in front of the rectum and posterior to the pubic symphysis Features--- Chestnut-shaped apex, base, anterior surface, posterior surface (a prostatic sulcus) the urethra passed it Structure: 5 lobes 24 12
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15 29 Ⅷ. The seminal vesicles 精囊腺 : oval sacculated organs posterior to the fundus of urinary bladder open to the ejaculatory duct Ⅸ. The bulbourethral gland 尿道球腺 in the urogenital diaphragm open to the bulbar portion of urethra 30 15
16 31 External genital organs 外生殖器 Scrotum 阴囊 Penis 阴茎 32 16
17 Ⅹ.The Scrotum 阴囊 : 2 layers---skin, dartos (septum) contents: testis, epididymis, spermatic cord and its coverings 33 Ⅺ. Penis 阴茎 External features: 3 parts head (glans) body root Structures: --- three cavernous bodys ( 海绵体 ): two cavernous bodys of penis one cavernous body of urethra --- albuginea ( 白膜 ) of 3 cavernous bodies --- deep fascia of penis --- superficial fascia --- skin * Prepuce ( 阴茎包皮 ): skin is folded * Frenulum Prepuce ( 包皮系带 ) 34 17
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19 37 思考题 试述男性生殖系统的组成 试述输精管的分部及精索的组成 试述男性尿道的分部及狭窄部位 试述前列腺的分部及其与尿道的关系 试述精子的产生与排出途径 38 19
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